Peanut Butter Rice Krispie Treats

3 tablespoons butter
½ c smooth peanut butter
1 package (10 oz. about 40) regular marshmallows
or 4 cups miniature marshmallows
6 cups Rice Krispies cereal

Melt butter and peanut butter in large saucepan over low heat. Add marshmallows and stir until completely melted. Remove from heat.

Add Rice Krispies cereal. Stir until well coated.

Using buttered spatula or waxed paper, press mixture evenly into 13 x 9 x 2-inch pan coated with cooking spray. Cut into 2-inch squares when cool. Best if served the same day.